Allen Bradley 1772-LW PLC 5 Mini Processor

The Allen-Bradley 1772-LW is a high-capacity Mini-PLC-2/17 processor designed for advanced industrial automation and control applications. Manufactured by Rockwell Automation, this processor delivers reliable system performance, flexible programming capability, and extensive I/O support for medium to large-scale control systems.

The 1772-LW processor features 7.75K 16-bit words of RAM memory and supports up to 512 total I/O points and 512 analog I/O points. It provides fast program and I/O scanning performance, advanced instruction capabilities, and enhanced mathematical functions for demanding automation tasks. The processor supports both standard and advanced programming instructions, including sequencer control, PID functions, subroutine programming, block transfer instructions, and data manipulation operations.

Designed for installation in the leftmost slot of any 1771 I/O chassis, the 1772-LW includes a 15-pin interface port, status indicators, and conformal coating for improved durability in industrial environments. Its wide operating temperature range and high humidity tolerance make it suitable for harsh manufacturing and process control applications.

Details

Manufacturer

Allen Bradley

Category

PLCs

Product Line

PLC 5

Part Number

1772-LW

Weight

2.25 lbs (1.02 kg)

Module Type

Mini Processor

Words

7.75 Word SRAM

Total I/O

512

Analog I/O

512

Ports

15-Pin Interface Port

Screw Torque

7-9 lb*in

Typical Application

10-32 Volts DC, Digital

Large Memory Capacity

Equipped with 7.75K 16-bit word RAM memory

Extensive I/O Support

Supports up to 512 total I/O and 512 analog I/O

Fast Processing Speed

Provides rapid program and I/O scan times

Advanced Programming Functions

Supports PID, sequencer, subroutine, and block transfer instructions

Powerful Math Capability

Supports addition, subtraction, multiplication, division, logarithmic, averaging, and standard deviation functions

Flexible Installation

Fits into the leftmost slot of any 1771 I/O chassis

Communication Interface

Includes a 15-pin interface communication port

Industrial Reliability

Conformally coated for protection in harsh industrial environments

Status Monitoring

Integrated status indicators simplify diagnostics and troubleshooting

Wide Environmental Tolerance

Operates reliably in demanding temperature and humidity conditions

Question

Answer

What is the primary function of the Allen-Bradley 1772-LW?

The 1772-LW serves as the central processor for Mini-PLC-2/17 systems, executing control programs and managing industrial automation operations.

How many I/O points can the 1772-LW support?

The processor supports up to 512 total I/O points and 512 analog I/O points.

Does the 1772-LW support advanced programming instructions?

Yes. It supports advanced functions including PID control, sequencer instructions, block transfer, subroutine programming, and advanced math functions.

What environmental conditions can the 1772-LW operate in?

The processor operates within a temperature range of 0°C to 60°C and supports 5% to 95% non-condensing humidity.

Where is the 1772-LW processor installed?

The module is designed for installation in the leftmost slot of any Allen-Bradley 1771 I/O chassis.

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